[all-commits] [llvm/llvm-project] a5f341: [InstCombine] Replace non-demanded undef vector wi...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a5f34155339b4c01357462da95aac62291ed7ec8
      https://github.com/llvm/llvm-project/commit/a5f34155339b4c01357462da95aac62291ed7ec8
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2023-12-18 (Mon, 18 Dec 2023)

  Changed paths:
    M clang/test/CodeGen/SystemZ/builtins-systemz-zvector-constrained.c
    M clang/test/CodeGen/SystemZ/builtins-systemz-zvector.c
    M clang/test/CodeGen/SystemZ/builtins-systemz-zvector2-constrained.c
    M clang/test/CodeGen/SystemZ/builtins-systemz-zvector2.c
    M clang/test/CodeGen/aarch64-neon-vcmla.c
    M clang/test/CodeGen/nofpclass.c
    M clang/test/Headers/wasm.c
    M llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
    M llvm/test/Transforms/InstCombine/AArch64/demandelts.ll
    M llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-demanded-vector-elts-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-demanded-vector-elts.ll
    M llvm/test/Transforms/InstCombine/X86/x86-addsub.ll
    M llvm/test/Transforms/InstCombine/X86/x86-avx2.ll
    M llvm/test/Transforms/InstCombine/X86/x86-muldq.ll
    M llvm/test/Transforms/InstCombine/X86/x86-pack-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/X86/x86-pack.ll
    M llvm/test/Transforms/InstCombine/X86/x86-pshufb.ll
    M llvm/test/Transforms/InstCombine/X86/x86-vector-shifts.ll
    M llvm/test/Transforms/InstCombine/X86/x86-vpermil.ll
    M llvm/test/Transforms/InstCombine/assume.ll
    M llvm/test/Transforms/InstCombine/binop-select-cast-of-select-cond.ll
    M llvm/test/Transforms/InstCombine/bitcast-vec-canon-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/bitcast-vec-canon.ll
    M llvm/test/Transforms/InstCombine/bitreverse.ll
    M llvm/test/Transforms/InstCombine/broadcast.ll
    M llvm/test/Transforms/InstCombine/bswap.ll
    M llvm/test/Transforms/InstCombine/extractelement.ll
    M llvm/test/Transforms/InstCombine/icmp-bc-vec.ll
    M llvm/test/Transforms/InstCombine/icmp-vec.ll
    M llvm/test/Transforms/InstCombine/insert-extract-shuffle-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/insert-extract-shuffle.ll
    M llvm/test/Transforms/InstCombine/logical-select.ll
    M llvm/test/Transforms/InstCombine/masked_intrinsics-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/masked_intrinsics.ll
    M llvm/test/Transforms/InstCombine/matrix-multiplication-negation.ll
    M llvm/test/Transforms/InstCombine/nsw.ll
    M llvm/test/Transforms/InstCombine/obfuscated_splat.ll
    M llvm/test/Transforms/InstCombine/select-binop-cmp.ll
    M llvm/test/Transforms/InstCombine/select-extractelement-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/select-extractelement.ll
    M llvm/test/Transforms/InstCombine/shift-add.ll
    M llvm/test/Transforms/InstCombine/shuffle-cast.ll
    M llvm/test/Transforms/InstCombine/shuffle-select-narrow.ll
    M llvm/test/Transforms/InstCombine/shuffle_select.ll
    M llvm/test/Transforms/InstCombine/shufflevec-bitcast.ll
    M llvm/test/Transforms/InstCombine/shufflevector-div-rem.ll
    M llvm/test/Transforms/InstCombine/sub-of-negatible.ll
    M llvm/test/Transforms/InstCombine/trunc-extractelement-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/trunc-extractelement.ll
    M llvm/test/Transforms/InstCombine/trunc.ll
    M llvm/test/Transforms/InstCombine/type_pun.ll
    M llvm/test/Transforms/InstCombine/vec_demanded_elts.ll
    M llvm/test/Transforms/InstCombine/vec_phi_extract-inseltpoison.ll
    M llvm/test/Transforms/InstCombine/vec_phi_extract.ll
    M llvm/test/Transforms/InstCombine/vec_shuffle.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/deterministic-type-shrinkage.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/multiply-fused-dominance.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/multiply-fused-loops.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/multiply-fused-multiple-blocks.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/multiply-fused.ll
    M llvm/test/Transforms/LowerMatrixIntrinsics/multiply-minimal.ll
    M llvm/test/Transforms/PhaseOrdering/X86/pr61061.ll
    M llvm/test/Transforms/PhaseOrdering/X86/scalarization.ll
    M llvm/test/Transforms/PhaseOrdering/X86/shuffle.ll
    M llvm/test/Transforms/SLPVectorizer/AMDGPU/add_sub_sat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/alternate-calls.ll
    M llvm/test/Transforms/SLPVectorizer/X86/alternate-int.ll
    M llvm/test/Transforms/SLPVectorizer/X86/hadd.ll
    M llvm/test/Transforms/SLPVectorizer/X86/pr47629.ll
    M llvm/test/Transforms/SLPVectorizer/X86/pr47642.ll

  Log Message:
  -----------
  [InstCombine] Replace non-demanded undef vector with poison

If an operand (esp to shufflevector or insertelement) is not
demanded, canonicalize it from undef to poison.